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Search Results for "salmon"

NW salmon forecasts and fisheries dates


Here is an excerpt from yesterday’s WDFW announcement that describes the forecasts for many Columbia and Salish Sea salmon runs.  To Pat’s credit, there was a quick correction to a painful error (suggesting that adipose-clipped fish weren’t hatchery fish).  In conjunction with the process-map in the previous post, these dates should help us orca-advocates be [...]

A map for including killer whales in NW fisheries managment


Just happened upon this nice synopsis of how WDFW views the various processes by which fishing harvests are governed in the Pacific Northwest. For me, this helps clarify which processes we killer whale advocates could influence to bolster the number of salmon and other fish that are available to feed the southern residents. As usual, [...]

Loss of salmon smolts in BC and CA


An awareness seems to be dawning that salmon smolt mortality is increased by human activities — both in the nearshore environment and in river systems. A recent biological opinion regarding Sacramento salmon suggested that about 8% of the smolts entering the San Juaquin / Sacramento delta make it through to the ocean. This article mentions [...]

Strong spring chinook run on the Columbia


Here we are in mid-February, a couple weeks into the blackmouth opening in the Salish Sea, and WDFW is opening up recreational fishing for spring (winter?) Chinook running in the Columbia [see today's email announcement below].  This makes me wonder where the southern residents are at the moment and what the run timing looks like [...]

Persistent organic pollutants in killer whales


Persistent organic pollutants as chemical tracers for Puget Sound marine biota, Gina Ylitalo Chemical tracers can be used to determine geographic ranges.  Persistent organic pollutants (POPs) like PCBs and PDBEs in Salish Sea herring (3 yr old males collected ’99 and ’04) showed elevated levels in Puget Sound relative to Georgia Strait, though difference was [...]

Juvenile Salmon Use of Nearshore Habitats in San Juan County


Tina Wyllie-Echeverria Collaboration with Eric Beamer and Kurt Fresh (tows), and many students/volunteers 1950-2006, about 50 sites around the San Juans have been sampled and have found juvenile salmon.  Of 656km of SJI shoreline, 430km is rocky beach.  Tow nets (164 tows at 37 sites, monthly from Apr-Sep) caught juveniles of 5 species and 785k [...]

Fish Response to Shoreline Habitats


Jason Toft Comparing along-shore snorkel surveys between cobble beach, sand beach, rip rap, deep rip rap, and overwater structure. We see biggest difference when you have sub-tidal modifications. Gastric lavage of juvenile Chinook: insects dominate in shallow habitats, plankton/benthic dominate when shoreline is steep. At Olympic sculpture park, we looked at pocket beach and subtidal [...]

Juvenile Chinook use pocket estuaries near natal rivers


Eric Beamer, Juvenile Chinook salmon use of small non-natal estuaries  in the Whidbey Basin, eastern Admiralty Inlet, and the San Juan Islands Most of our juveniles are coming from the Skagit, accumulating early in the year (feb-may, some years as early as december, often associated with floods).  Pocket estuaries are safer places (most fish are [...]

North Kitsap Nearshore Fish


Paul Dorn, Preliminary Results of Beach Seine Sampling in 2007 and 2008. Unmarked coho dominated our seines, particularly in may/june.  Coho size about 120-140cm, larger if from hatchery.  Lots of juvenile chum in apr/may/june (many more in 2007 than in 2008, probably due to Dec 07 floods).  2008 pink salmon (may/june) show this is part [...]

Nearshore distribution and size-structure of juvenile salmon and forage fishfrom the observations and modeling on watersheds, marine waters, and marine biota. These talks will focus


Elisabeth Duffy*, David Beauchamp Juvenile salmon are moving through Puget Sound (PS) from April-July.  By end of July most have made it to the deep ocean.  Percent of fish from hatcheries is about 50% in N PS and 90% in S PS. Nearshore fish comunity: herring and perch up north, hatchery salmon dominate in the [...]